The phrase “tension and release” gets thrown around constantly in music education, but it only tells half the story — and the way it’s usually explained makes it feel like a harmonic concept rather than a universal one. Zoom out a little, and you’ll see the real principle underneath it: contrast. Understanding contrast as the engine of musical interest will change how you approach every solo you play.
What you’ll get out of this lesson
You’ll leave with a practical framework for contrast soloing — a way of deliberately pairing opposing musical attributes to create depth, interest, and a sense of shape in your improvisation. This lesson gives you the concept, the vocabulary, and a table of contrasting pairs to start working with immediately.
From tension and release to contrast
Tension and release is a familiar concept, and it’s a valid one — but it’s incomplete. When musicians talk about it, they tend to reach for harmonic examples: a G7 resolving to a Cmaj, outside playing resolving back in. What they usually mean — even if they don’t say it — is that contrast is doing the work. Tension and release is just one form of contrast. High and low, dense and sparse, diatonic and chromatic, loud and soft, long and short — all of these are contrasting pairs, and all of them create musical interest by the same mechanism.
Think about it this way: imagine you’re improvising on a blues and you play outside for a single bar, then resolve back in. It works. Now imagine you play outside for twenty bars. Suddenly it’s not working — not because outside is wrong, but because you’ve starved the listener of the contrast that made it interesting in the first place. The inside lines aren’t just a foil for the outside ones; they’re what makes the outside ones land.
How contrast soloing works in practice
Contrast soloing is a specific approach: you play a phrase, identify one of its attributes, and then play a phrase that inverts that attribute. Short phrase, then long phrase. Ascending line, then descending line. On the beat, then syncopated. Dense, then sparse. The idea is to think in pairs — active and passive, question and answer — but with a tangible attribute you can name and invert, rather than the vague instruction to “play call and response.”
You can work in two directions. Either decide on a contrasting attribute pair before you start playing, then consciously swap between them as you improvise. Or play freely, stop, describe what you just played in one word — ascending, long, loud — and then invert that attribute for the next phrase. Both approaches work. The first builds deliberate control; the second trains your ability to listen to your own playing analytically in real time.
Contrast soloing will change the way you play, and you can do it in two ways. You can think of a concept or an attribute, then play something, and then play the inversion. Or you can play something and then afterwards retroactively go, “Right, how would I describe that? Okay, let’s invert the features that I’ve just described.”
The contrast table
Below is a table of paired contrasting elements to practise going between. Items on the left may be perceived as Active and items on the right may be seen as more Passive. This is a generalisation — use it as a prompt, not a rule. These are not in any particular order; start with the pairs that make most sense to you.
Note: contrast isn’t only about going between extremes. You can blend contrast in slowly and subtly — the gradual shift from one attribute to its opposite can be just as powerful as a sudden swap.
Things to think about as you practise
- How long can you maintain one attribute before feeling the need to swap to the contrasting side? Experiment with different lengths — drag it out, or cut it short. Develop your sense of when contrast is needed. Sometimes balance is what the music wants; sometimes imbalance is exactly right.
- Listen to the harmony and/or the band. Are the chords outlining a scheme of contrast you can follow? For example, dominant to tonic movement might naturally support a shift from high activity to low activity, or from tension to release.
Additional exercises:
- Listen for contrast being used by composers and improvisers in the music you enjoy. David Gilmour is a particularly good example — his solos are a masterclass in pacing and the use of space. Try to emulate what you notice in your own improvisation.
- Come up with your own contrasting pairs and share them in the group.
Taking it further
Once you’re comfortable working with a single contrasting pair, try combining two at once: play something that’s simultaneously short and loud, then answer with something long and soft. In reality, multiple elements of contrast are always operating at the same time in great music — what this lesson does is teach you to hear and control them one at a time before you start weaving them together.
Your homework
Pick one contrasting pair from the table — start with something obvious like Long/Short or Ascending/Descending. Improvise over a backing track for ten minutes, consciously swapping between those two attributes every few bars. Record yourself. Listen back and notice whether the solo has more shape and narrative than your usual playing. Next session, try a different pair.